Author Topic: thermostat housing ?  (Read 3366 times)

Offline tigwelder

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thermostat housing ?
« on: February 18, 2011, 10:37:27 pm »
1985 K20.what is the plastic manifold  with 6 hose plug In's on thermostat housing called? what hose,s go to it?anywhere on web i can find pictures of emission hose routing.po changed heads and never finished hooking everything up.

Offline 1979C20

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Re: thermostat housing ?
« Reply #1 on: February 19, 2011, 03:50:23 am »
I believe its a ported vacuum switch, I can snap a picture of my vacuum routing sticker under my hood in the morning.
1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF

Offline Irish_Alley

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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

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Offline tigwelder

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Re: thermostat housing ?
« Reply #3 on: February 19, 2011, 08:00:34 am »
thanks for the pics and help. the guy i got truck from replaced the heads and said he pitched  some of the emission hoses.so i guess i won't be fixing any of that stuff.